emac_mac_dev_s::<anonymous union>::<anonymous struct>::pcf

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uint32_t pcf : 2; /*These bits control the forwarding of all control frames (including unicast and multicast Pause frames). 2'b00: MAC filters all control frames from reaching the application. 2'b01: MAC forwards all control frames except Pause frames to application even if they fail the Address filter. 2'b10: MAC forwards all control frames to application even if they fail the Address Filter. 2'b11: MAC forwards control frames that pass the Address Filter.The following conditions should be true for the Pause frames processing: Condition 1: The MAC is in the full-duplex mode and flow control is enabled by setting Bit 2 (RFE) of Register (Flow Control Register) to 1. Condition 2: The destination address (DA) of the received frame matches the special multicast address or the MAC Address 0 when Bit 3 (UP) of the Register(Flow Control Register) is set. Condition 3: The Type field of the received frame is 0x8808 and the OPCODE field is 0x0001.*/

emac_mac_struct.h:54